Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT9Z callsign genealogy
Currently held by MC HARRY, DENNIS G
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KT9Z's current licensee, walking backwards.
- MC HARRY, DENNIS GINgranted 1999-07-12cancelled 2004-02-24
Successor callsigns
Callsigns held now by people who previously held KT9Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KT9Z, oldest first.
- KEITHLEY, SANDERSON I IL1988-04-26 → cancelled 2000-04-27
- MC HARRY, DENNIS G IN2024-01-03 active